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D. ALLEN. HeadrBlock for Burnishiug'MaJohimes.

No. 239,635. Patented April 551881.

UNTTED STATES PATENT OFFICE..

PARDON D. ALLEN, OF AUBURN, IVIAINE, ASSIGNOR OF ONE-HALF TO A. GUSHMAN 8U OO., OF SAME PLACE.

HEAD-BLOCK FOR BURNISHING-IVIACHINES.l

SPECIFICATION forming part of Letters Patent No. 239,635,dated `April 5, 1881.

Application filed J anuary 26, 1880.

To all whom tt may concern:

Beit known that I, PARDoN DEXTER AL- LEN, of Auburn, in the county of Androscoggin and State of Maine, have invented a new and useful Improvement in Head-Blocks for Burnishing-Machines, of which the following is a specification.

The herein-described invention relates to the head block or stock for holding boots and shoes while the heels of the same are being finished on any of the burnishing-machines now in use. Its object is to provide a convenient, expeditious, and exact method of adjusting the jack head-block for heels of different heights.

In the accompanying drawings, Figure l is a longitudinal section of the:devicc. Fig. 2 is 1 a perspective view of the device.

port-ed by the jack proper in the as the head now used.

The adjustment for heels of different heights is effected by screwing the head C backward or forward on the spindle A, andwhen in proper position it is secured b v the check-nut B. As in this method of adjustment the position of the jack is not changed, the pull of the springs remains always the same.

The heel H of the boot or shoe operated upon is held upon the spurs S S. As the boot is revolved to bring all parts of the heel H in contact with the burnishing wheel W, the cap D is 'revolved with it, and .the spurs S S, not moving relatively to the boot, have a firm hold.

What I claim is- In a jack head-block for heel-bnrnishing machines, the combination of spurred cap D with head O, sleeve check-nut B, and spindle A, substantially as and for the purposes set forth;

same manner PARDON DEXTER ALLEN.

Witnesses: I v

A. J. SHAW, NATHAN W. HARRIS. 

